CVE-2026-42626

Published May 22, 2026 CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
HP ENVY 5000 series printers VERBASPP1N003.2237A.00 do not properly manage concurrent TCP connections to port 9100 (JetDirect/RAW printing). An unauthenticated remote attacker on the same network can establish a persistent connection to port 9100 and send keep-alive packets, causing the printer's session threads to remain locked in a waiting state. The firmware lacks connection timeouts and concurrent session limits, resulting in a persistent Denial of Service (DoS) that renders the printer unresponsive to all user commands and print jobs. Physical intervention (manual restart) is required to restore functionality, and the attack can be immediately re-initiated.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Hp
Hp envy 5000 Series Printers
Vendors & Products Hp
Hp envy 5000 Series Printers
Type Values Removed Values Added
Title Concurrent TCP Connection Denial of Service on HP Envy 5000 Printers
Type Values Removed Values Added
Title Concurrent TCP Connection Denial of Service on HP Envy 5000 Printers
Type Values Removed Values Added
Weaknesses CWE-400
CWE-770
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description HP ENVY 5000 series printers VERBASPP1N003.2237A.00 do not properly manage concurrent TCP connections to port 9100 (JetDirect/RAW printing). An unauthenticated remote attacker on the same network can establish a persistent connection to port 9100 and send keep-alive packets, causing the printer's session threads to remain locked in a waiting state. The firmware lacks connection timeouts and concurrent session limits, resulting in a persistent Denial of Service (DoS) that renders the printer unresponsive to all user commands and print jobs. Physical intervention (manual restart) is required to restore functionality, and the attack can be immediately re-initiated.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
May 22, 2026, 5:42 PM
Reserved
Apr 29, 2026, 12:00 AM
Status
Awaiting Analysis
Published
May 22, 2026, 5:16 PM
Modified
Jul 23, 2026, 4:10 PM